CN103048808B

CN103048808B - Electrochromic device and preparation method thereof

Info

Publication number: CN103048808B
Application number: CN201210575939.1A
Authority: CN
Inventors: 蔡明�
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-12-26
Filing date: 2012-12-26
Publication date: 2016-03-09
Anticipated expiration: 2032-12-26
Also published as: CN103048808A

Abstract

The invention discloses a kind of Electrochromic device and preparation method thereof, belong to color-change technology field.Described Electrochromic device method for making comprises: use the first predetermined technique on base material, form one deck first Electric radiant Heating Film; The second predetermined technique is used to form one deck first thermochromic film in described first Electric radiant Heating Film.Solve in prior art, making five layer film is needed when making electrochromic device, and the cost of manufacture due to every layer film is high and yields is low, thus the problem that the cost of manufacture of the Electrochromic device caused is high and yields is low, and owing to being subject to the restriction of existing manufacture craft, existing ripe variable color scheme can only realize blue to colourless variable color, the problem that colorfulness is limited.Reach and only need to form double-layer films on base material, and the manufacturing technology of every layer film is ripe, thus while the making yields improving Electrochromic device, reduce the effect of cost.

Description

Electrochromic device and preparation method thereof

Technical field

The present invention relates to color-change technology field, particularly a kind of Electrochromic device and preparation method thereof.

Background technology

Along with the high speed development of science and technology, people, while pursuit high performance device, are also pursuing the abundant device of appearance colour.So how producing the device that can realize variable color according to user's request has become one of important research topic of each device manufacturer.

The method for making of existing a kind of Electrochromic device, comprise: on base material, form transparency conducting layer, ion storage, ion conductive layer, electrochromic layer and transparency conducting layer successively, then between the transparency conducting layer of both sides, certain voltage is added, thus make electrochromic layer, under the effect of voltage, redox reaction occur, realize the change of device color.

Realizing in process of the present invention, inventor finds prior art, and at least there are the following problems:

When using existing scheme to make electrochromic device, cost of manufacture due to every tunic is high and yields is low, so when five tunics are superimposed together, the cost of manufacture of Electrochromic device is very high and yields is very low, and owing to being subject to the restriction of existing manufacture craft, existing ripe production program can only realize blue to colourless variable color, and colorfulness is limited.

Summary of the invention

In order to solve in prior art the single problem of Electrochromic device cost of manufacture is high, yields is low and can realize colourshift colours, embodiments provide a kind of Electrochromic device and preparation method thereof.Described technical scheme is as follows:

First aspect, provides a kind of Electrochromic device, and described Electrochromic device comprises:

Base material, the first thermochromic film being formed at the first Electric radiant Heating Film on described base material and being formed in described first Electric radiant Heating Film; Described first Electric radiant Heating Film is any one in simple metal film, the metallic film of doping predetermined material and the alloy firm of doping predetermined material, and described predetermined material comprises at least one in oxide, nitride, carbonide, oxynitrides, carboritride, carboritride and carbon oxynitride;

Described first Electric radiant Heating Film is also connected with the first power supply, and the magnitude of voltage of described first power supply is in the scope of 0 to 36 volt, and the voltage of described first power supply is provided by the electronic equipment applying described Electrochromic device;

When described first power supply is switched on, described first Electric radiant Heating Film starts heating thus makes described first thermochromic film switch to the second color by the first color;

When described first power supply is disconnected, described first Electric radiant Heating Film begins to cool down thus makes described first thermochromic film switch back described first color by described second color.

In the first possible implementation of first aspect, described base material is conductive base, and described device also comprises:

Be formed at the dielectric film between described base material and described first Electric radiant Heating Film.

In conjunction with the first possible implementation of first aspect or first aspect, in the implementation that the second is possible, described Electrochromic device also comprises:

The second thermochromic film being formed at the septum pellucidum thermosphere on described first thermochromic film, being formed at the second Electric radiant Heating Film on described septum pellucidum thermosphere and being formed on described second Electric radiant Heating Film;

Described second Electric radiant Heating Film is also connected with second source;

When described second source is switched on, described second Electric radiant Heating Film starts heating thus makes described second thermochromic film switch to the 4th color by the 3rd color;

When described second source is disconnected, described second Electric radiant Heating Film begins to cool down thus makes described second thermochromic film switch back described 3rd color by described 4th color.

In conjunction with the implementation that the second of first aspect is possible, in the implementation that the third is possible,

Described base material be through predetermined process or without any one in the glass of described predetermined process, pottery, magnesium, aluminium, stainless steel and alloy, described predetermined process comprises gas-phase deposition coating, electrochemical filming, plated film, anodic oxidation, differential arc oxidation, thermal spray, sprays paint and form at least one in organism film;

Described first thermochromic film and described second thermochromic film are the temperature sensing ink with at least one variable color threshold value;

Described septum pellucidum thermosphere comprises any one in sull, nitride film, carbide thin film, nitrogen carbon compound film, oxynitride film and carbon oxynitride film.

In conjunction with the third possible implementation of first aspect, in the 4th kind of possible implementation,

The magnitude of voltage of described second source is in the scope of 0 to 36 volt.

Second aspect, provide a kind of Electrochromic device method for making, described method comprises:

Use the first predetermined technique on base material, form one deck first Electric radiant Heating Film, described first predetermined technique comprises any one in evaporation coating, magnetron sputtering plating and ion film plating; Described first Electric radiant Heating Film is any one in simple metal film, the metallic film of doping predetermined material and the alloy firm of doping predetermined material, and described predetermined material comprises at least one in oxide, nitride, carbonide, oxynitrides, carboritride, carboritride and carbon oxynitride;

Use the second predetermined technique to form one deck first thermochromic film in described first Electric radiant Heating Film, described second predetermined technique comprises any one in spraying, transfer printing, silk-screen, offset printing and bat printing;

Described first Electric radiant Heating Film be connected with the first power supply, the magnitude of voltage of described first power supply is in the scope of 0 to 36 volt, and the voltage of described first power supply is provided by the electronic equipment applying described Electrochromic device.

In the first possible implementation of second aspect, described base material is conductive base, and described use first predetermined technique also comprised form one deck first Electric radiant Heating Film on base material before:

Described first predetermined technique is used to form one deck dielectric film on the substrate.

In conjunction with the first possible implementation of second aspect and second aspect, in the implementation that the second is possible, described use first predetermined technique forms one deck first Electric radiant Heating Film on base material, comprising:

The subregion of covering described base material makes to reserve another part region comprising at least one pattern on the surface of described base material;

Described first predetermined technique is used to form the first Electric radiant Heating Film described in one deck on described another part region.

In conjunction with the first possible implementation of second aspect and second aspect, in the implementation that the third is possible, described use second predetermined technique also comprised form one deck first thermochromic film in described first Electric radiant Heating Film before:

Described first Electric radiant Heating Film is divided at least one region, etches a pattern in each area.

In conjunction with the third possible implementation of second aspect, in the 4th kind of possible implementation, described use second predetermined technique forms one deck first thermochromic film in described first Electric radiant Heating Film, comprising:

Use described second predetermined technique to form the first thermochromic film described in one deck respectively on all or part of region of described first Electric radiant Heating Film, the material of described first thermochromic film that regional is formed is identical or different.

In conjunction with the first possible implementation of second aspect or second aspect, in the 5th kind of possible implementation, described use second predetermined technique also comprises form one deck first thermochromic film in described first Electric radiant Heating Film after:

Described first predetermined technique is used to form layer of transparent thermofin in described first thermochromic film;

Described first predetermined technique is used to form one deck second Electric radiant Heating Film on described septum pellucidum thermosphere;

Described second predetermined technique is used to form one deck second thermochromic film in described second Electric radiant Heating Film.

In conjunction with the 5th kind of possible implementation of second aspect, in the 6th kind of possible implementation, described first predetermined technique of described use forms one deck second Electric radiant Heating Film on described septum pellucidum thermosphere, comprising:

The subregion of covering described transparent heat-insulating film makes to reserve another part region comprising at least one pattern on the surface of described transparent heat-insulating film;

Described first predetermined technique is used to form the second Electric radiant Heating Film described in one deck on described another part region.

In conjunction with the 6th kind of possible implementation of second aspect, in the 7th kind of possible implementation, described second predetermined technique of described use also comprised form one deck second thermochromic film in described second Electric radiant Heating Film before:

Described second Electric radiant Heating Film is divided at least one region, etches a pattern in each area.

In conjunction with the 7th kind of possible implementation of second aspect, in the 8th kind of possible implementation, described second predetermined technique of described use forms one deck second thermochromic film in described second Electric radiant Heating Film, comprising:

Use described second predetermined technique to form the second thermochromic film described in one deck respectively on all or part of region of described second Electric radiant Heating Film, the material of described second thermochromic film that regional is formed is identical or different.

The beneficial effect of the technical scheme that the embodiment of the present invention provides is:

On base material, one deck first Electric radiant Heating Film is formed by using the first predetermined technique, and use the second predetermined technique in the first Electric radiant Heating Film, form one deck first thermochromic film, thus make when the first power supply be connected with the first Electric radiant Heating Film is switched on, first thermochromic film switches to the second color by the first color, and when the first power supply be connected with the first Electric radiant Heating Film is disconnected, the temperature of the first Electric radiant Heating Film declines thus makes the first thermochromic film switch back the first color by the second color.Solve in prior art, making five layer film is needed when making electrochromic device, and the cost of manufacture due to every layer film is high and yields is low, thus the problem that the cost of manufacture of the Electrochromic device caused is high and yields is low, and owing to being subject to the restriction of existing manufacture craft, existing ripe variable color scheme can only realize blue to colourless variable color, the problem that colorfulness is limited.Reach and only need to form double-layer films on base material, and the manufacturing technology of every layer film is ripe, thus while the making yields improving Electrochromic device, reduce the effect of cost of manufacture.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the structural representation of the Electrochromic device that the embodiment of the present invention one provides;

Fig. 2 is the structural representation of the Electrochromic device that the embodiment of the present invention two provides;

Fig. 2 A is the circuit diagram that the first Electric radiant Heating Film that the embodiment of the present invention two provides is connected with the first power supply;

Fig. 2 B is another circuit diagram that the first Electric radiant Heating Film that the embodiment of the present invention two provides is connected with the first power supply;

The circuit diagram of Fig. 2 C to be the first power supply of providing of the embodiment of the present invention two and second source be same power supply;

The circuit diagram of Fig. 2 D to be the first power supply of providing of the embodiment of the present invention two and second source be two independent current sources;

Fig. 3 is the method flow diagram of the Electrochromic device method for making that the embodiment of the present invention three provides;

Fig. 4 is the method flow diagram of the Electrochromic device method for making that the embodiment of the present invention four provides;

Fig. 4 A is the circuit diagram that each pattern in the first Electric radiant Heating Film of providing of the embodiment of the present invention four is connected with the first power supply respectively;

Fig. 5 is the method flow diagram of the Electrochromic device method for making that the embodiment of the present invention five provides;

Fig. 6 is the schematic diagram that in the first implementation of the present invention, first power supply is tested the first heated by electrothermal film;

Fig. 7 is schematic diagram when first Electric radiant Heating Film etching in the third implementation of the present invention two patterns.

Embodiment

In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, and obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.

Embodiment one

Please refer to Fig. 1, it illustrates the structural representation of the Electrochromic device that the embodiment of the present invention one provides, the first thermochromic film 130 that this Electrochromic device comprises base material 110, is formed at the first Electric radiant Heating Film 120 on base material and is formed in the first Electric radiant Heating Film 120.

Wherein, first Electric radiant Heating Film 120 is also connected with the first power supply 140, when the first power supply 140 is switched on, first Electric radiant Heating Film 120 starts heating thus makes the first thermochromic film 130 switch to the second color by the first color, when described first power supply 140 is disconnected, described first Electric radiant Heating Film 120 begins to cool down thus makes described first thermochromic film 130 switch back described first color by described second color.

In sum, the Electrochromic device that the present embodiment provides, on base material, one deck first Electric radiant Heating Film is formed by using the first predetermined technique, and use the second predetermined technique in the first Electric radiant Heating Film, form one deck first thermochromic film, thus make when the first power supply be connected with the first Electric radiant Heating Film is switched on, first thermochromic film switches to the second color by the first color, and when the first power supply be connected with the first Electric radiant Heating Film is disconnected, the temperature of the first Electric radiant Heating Film declines thus makes the first thermochromic film switch back the first color by the second color.Solve in prior art, making five layer film is needed when making electrochromic device, and the cost of manufacture due to every layer film is high and yields is low, thus the problem that the cost of manufacture of the Electrochromic device caused is high and yields is low, and owing to being subject to the restriction of existing manufacture craft, existing ripe variable color scheme can only realize blue to colourless variable color, the problem that colorfulness is limited.Reach and only need to form double-layer films on base material, and the manufacturing technology of every layer film is ripe, thus while the making yields improving Electrochromic device, reduce the effect of manufacturing cost.

Embodiment two

Please refer to Fig. 2, it illustrates the structural representation of the Electrochromic device that the embodiment of the present invention two provides, this Electrochromic device comprise base material 110, the first Electric radiant Heating Film 120 be formed on base material, the first thermochromic film 130 be formed in the first Electric radiant Heating Film 120, the second thermochromic film 180 of being formed at dielectric film 150 between base material 110 and the first Electric radiant Heating Film 120, being formed at septum pellucidum thermosphere 160 on the first thermochromic film 130, being formed at the second Electric radiant Heating Film 170 on septum pellucidum thermosphere 160 and being formed on the second Electric radiant Heating Film 170.

Please refer to Fig. 2 A, it illustrates in the present embodiment, when base material 110 is insulating substrates, the structural representation that the first Electric radiant Heating Film 120 is connected with the first power supply 140; Similar, please refer to Fig. 2 B, it illustrates in the present embodiment, when base material 120 is conductive bases, form dielectric film 150 between base material 110 and the first Electric radiant Heating Film 120 after, the structural representation that the first Electric radiant Heating Film 120 is connected with the first power supply 140.

When specific implementation, base material 110 can be through predetermined process or without any one in the glass of predetermined process, pottery, magnesium, aluminium, stainless steel and alloy, wherein, predetermined process comprises gas-phase deposition coating, electrochemical filming, plated film, anodic oxidation, differential arc oxidation, thermal spray, sprays paint and form at least one in organism film; First Electric radiant Heating Film 120 and the second Electric radiant Heating Film 170 can be any one in simple metal film, the metallic film of doping predetermined material and the alloy firm of doping predetermined material, wherein, predetermined material comprises at least one in oxide, nitride, carbonide, oxynitrides, carboritride, carboritride and carbon oxynitride; First thermochromic film 130 and the second thermochromic film 180 can be the temperature sensing ink with at least one variable color threshold value, as the red temperature sensing ink of 31 degrees Celsius, 30 degrees Celsius black temperature sensing ink, can realize in the special temperature sensing ink of syllogic variable color any one; Septum pellucidum thermosphere comprises any one in transparent sull, nitride film, carbide thin film, nitrogen carbon compound film, oxynitride film and carbon oxynitride film.The concrete material of the present embodiment to base material 110, first Electric radiant Heating Film 120, second Electric radiant Heating Film 170, first thermochromic film 130, second thermochromic film 180 and septum pellucidum thermosphere 160 does not limit, as long as can realize corresponding function;

Second Electric radiant Heating Film 170 is also connected with second source 190, when second source 190 is switched on, second Electric radiant Heating Film 170 starts heating thus makes the second thermochromic film 180 switch to the 4th color by the 3rd color, when second source 190 is disconnected, the second Electric radiant Heating Film 170 begins to cool down thus makes the second thermochromic film 180 switch back the 3rd color by the 4th color.Concretely, second source 190 can be same power supplys with the first power supply 140, also can be the power supply different from the first power supply 140, as long as can realize heating the second Electric radiant Heating Film 170, the specific implementation form of the present embodiment to second source 190 limit.Such as, please refer to Fig. 2 C, it illustrates when base material 110 is conductive bases, and second source 190 and the first power supply 140 are structural representations of same power supply; Composition graphs 2D, it illustrates when base material is conductive base, and second source 190 and the first power supply are the structural representations of two independently power supplys.

Wherein, the voltage of the first power supply 140 and/or second source 190 can be the voltage lower than human safety voltage 36V, even when Electrochromic device is applied to as mobile phone, time on the electronic equipment such as panel computer and MP4, the voltage of the first power supply 140 and/or second source 190 can be the voltage of the 3-5V that mobile phone provides, or the 3-15V voltage that panel computer provides, the voltage that the present embodiment only needs the first power supply 140 and second source 190 to provide can make the first thermochromic film 130 and the second thermochromic film 190 reach respective discoloring temperature, the occurrence of supply voltage is not limited.

It should be added that, when specific implementation, Electrochromic device can also comprise the septum pellucidum thermosphere, the 3rd Electric radiant Heating Film and the 3rd thermochromic film that are formed on the second thermochromic film 190, even more multi-layered septum pellucidum thermosphere, Electric radiant Heating Film and thermochromic film, the present embodiment does not limit this.

In sum, the Electrochromic device that the present embodiment provides, on base material, one deck first Electric radiant Heating Film is formed by using the first predetermined technique, and use the second predetermined technique in the first Electric radiant Heating Film, form one deck first thermochromic film, thus make when the first power supply be connected with the first Electric radiant Heating Film is switched on, first thermochromic film switches to the second color by the first color, and when the first power supply be connected with the first Electric radiant Heating Film is disconnected, the temperature of the first Electric radiant Heating Film declines thus makes the first thermochromic film switch back the first color by the second color.Solve in prior art, making five layer film is needed when making electrochromic device, and the cost of manufacture due to every layer film is high and yields is low, thus the problem that the cost of manufacture of the Electrochromic device caused is high and yields is low, and owing to being subject to the restriction of existing manufacture craft, existing ripe variable color scheme can only realize blue to colourless variable color, the problem that colorfulness is limited.Reach and only need to form double-layer films on base material, and the manufacturing technology of every layer film is ripe, thus while the making yields improving Electrochromic device, reduce the effect of manufacturing cost.And in the present embodiment, define septum pellucidum thermosphere, the second Electric radiant Heating Film and the second thermochromic film on the upper strata of the first thermochromic film simultaneously, reach on Electrochromic device, the effect of multi-layer colour-changing can be realized, simultaneously, the magnitude of voltage of the first power supply that the present embodiment uses and second source can be the human safety voltage at 0 to 36V, and when Electrochromic device is such as mobile phone, panel computer or MP4, the small voltage of 3-15V even can be adopted to realize variable color, and safety in utilization is higher.

Embodiment three

Please refer to Fig. 3, it illustrates the method flow diagram of the Electrochromic device method for making that the embodiment of the present invention three provides.The method may be used for making embodiment one and the Electrochromic device described in embodiment two, and the method comprises:

Step 301, uses the first predetermined technique on base material, form one deck first Electric radiant Heating Film;

When making Electrochromic device, can use the first predetermined technique on base material, form one deck first Electric radiant Heating Film.

Wherein, the first predetermined technique comprises any one in evaporation coating, magnetron sputtering plating and ion film plating.First Electric radiant Heating Film can be connected with the first power supply, and when the first power supply is switched on, the first Electric radiant Heating Film can start heating.

Step 302, uses the second predetermined technique in the first Electric radiant Heating Film, form one deck first thermochromic film.

After base material is formed one deck first Electric radiant Heating Film, can also use the second predetermined technique in the first Electric radiant Heating Film, form one deck first thermochromic film.Because the first thermochromic film is formed on the first Electric radiant Heating Film, and the first Electric radiant Heating Film is connected with the first power supply, so, after the first power supply is switched on, the first Electric radiant Heating Film will start heating, thus the temperature of the first thermochromic film can constantly rise, when the temperature of the first thermochromic film rises to discoloring temperature, first thermochromic film can switch to the second color by the first color, after the first power supply be connected with the first Electric radiant Heating Film is disconnected, first Electric radiant Heating Film will begin to cool down, now, the first thermochromic film can switch back the first color by the second color.

Wherein, the second predetermined technique comprises any one in spraying, transfer printing, silk-screen, offset printing and bat printing.

In sum, the Electrochromic device method for making that the present embodiment provides, on base material, one deck first Electric radiant Heating Film is formed by using the first predetermined technique, and use the second predetermined technique in the first Electric radiant Heating Film, form one deck first thermochromic film, thus make when the first power supply be connected with the first Electric radiant Heating Film is switched on, first thermochromic film switches to the second color by the first color, and when the first power supply be connected with the first Electric radiant Heating Film is disconnected, the temperature of the first Electric radiant Heating Film declines thus makes the first thermochromic film switch back the first color by the second color.Solve in prior art, making five layer film is needed when making electrochromic device, and the cost of manufacture due to every layer film is high and yields is low, thus the problem that the cost of manufacture of the Electrochromic device caused is high and yields is low, and owing to being subject to the restriction of existing manufacture craft, existing ripe variable color scheme can only realize blue to colourless variable color, the problem that colorfulness is limited.Reach and only need to form double-layer films on base material, and the manufacturing technology of every layer film is ripe, thus while the making yields improving Electrochromic device, reduce the effect of manufacturing cost.

Embodiment four

Please refer to Fig. 4, it illustrates the method flow diagram of the Electrochromic device method for making that the embodiment of the present invention four provides, the method may be used for making the Electrochromic device as described in embodiment one and embodiment two, and this method for making comprises:

Step 401, uses the first predetermined technique on base material, form one deck first Electric radiant Heating Film;

Wherein, the first predetermined technique comprises any one in evaporation coating, magnetron sputtering plating and ion film plating.First Electric radiant Heating Film can be connected with the first power supply, and when the first power supply is switched on, the first Electric radiant Heating Film can start heating, and when the first power supply is disconnected, the first Electric radiant Heating Film begins to cool down.The voltage of the first power supply can select the human safety voltage of 0-36V, and when the Electrochromic device made is the shell of the electronic equipments such as such as mobile phone, panel computer or MP4, can select the small voltage of 3-15V, the magnitude of voltage of the present embodiment to the first power supply does not limit.

In addition, when specific implementation, base material 110 can be through predetermined process or without any one in the glass of predetermined process, pottery, magnesium, aluminium, stainless steel and alloy, wherein, predetermined process comprises gas-phase deposition coating, electrochemical filming, plated film, anodic oxidation, differential arc oxidation, thermal spray, sprays paint and form at least one in organism film; First Electric radiant Heating Film can be any one in simple metal film, the metallic film of doping predetermined material and the alloy firm of doping predetermined material, wherein, predetermined material comprises at least one in oxide, nitride, carbonide, oxynitrides, carboritride, carboritride and carbon oxynitride, the aluminium film of such as doped zinc oxide aluminium film, pure aluminium film, doped aluminium or the aluminium film of doped aluminum nitride, the present embodiment, just for above-mentioned material, does not do any restriction to the material of base material and the first Electric radiant Heating Film.

It should be added that, when base material is the conductive bases such as magnesium, aluminium, stainless steel or alloy, before use first predetermined technique forms one deck first Electric radiant Heating Film on conductive base, in order to avoid being divided on base material by the electric current of the first Electric radiant Heating Film, thus cause the rate of rise in temperature of the first Electric radiant Heating Film slow, also namely the first thermochromic film reaches the problem of the time length that discoloring temperature needs, and the first predetermined technique can be used first on base material, to form one deck dielectric film.This dielectric film can comprise oxide or carbonide, and in order to allow dielectric film better be formed on conductive base, can adopt the mode of progressively transition on conductive base, be coated with the oxide of base material element.Such as, the base material of current selection is aluminium, then first can form pure aluminium film on base material, then the mode by progressively increasing oxygen or nitrogen flow makes base material to be formed the aluminum oxide film close to dielectric film or aluminium nitride film, the present embodiment is just example in the above manner, when specific implementation, different production methods can be adopted according to different production environments, will illustrate no longer one by one at this present embodiment.

Step 402, is divided at least one region by the first Electric radiant Heating Film, etches a pattern in each area;

In order to allow user can have better visual experience, after base material is coated with one deck first Electric radiant Heating Film, the first Electric radiant Heating Film can be divided at least one region, and in each region in etching a pattern.Concrete, gold-tinted processing procedure can be used to etch the first Electric radiant Heating Film is divided into multiple region, and use the etching of gold-tinted processing procedure to etch the pattern wanted in each area.The present embodiment just to use gold-tinted processing procedure etching method, when specific implementation, can adopt other any can the method for etched pattern and segmentation in the first Electric radiant Heating Film, the present embodiment does not limit this.

And, variable color can be there is respectively to allow etching pattern out, composition graphs 4A, when actual realization, each region of the first Electric radiant Heating Film can be set to an independent circuit, and be connected with the first power supply respectively, such user just can control the discoloration of the pattern in each region by the Push And Release of the first power supply controlling each region.Certainly, also the first Electric radiant Heating Film being divided into multiple region can be set to a circuit be communicated with, thus variable color while realizing multiple zone map by same first power supply, the present embodiment does not limit this.

Step 403, uses the second predetermined technique to form one deck first thermochromic film respectively on all or part of region of the first Electric radiant Heating Film, and the material of the first thermochromic film that regional is formed is identical or different;

First Electric radiant Heating Film is being divided into multiple region, and etch a pattern in each region after, in order to the change of multiple color can be realized, the second predetermined technique can be used to form one deck first thermochromic film respectively in all or part of region of the first Electric radiant Heating Film, and the material of first thermochromic film in each region can be the same or different.

Wherein, the second predetermined technique can comprise any one in spraying, transfer printing, silk-screen, offset printing and bat printing, and the generation type of the present embodiment to the first thermochromic film does not limit.

In addition, when specific implementation, the material of the first thermochromic film can be the temperature sensing ink with at least one variable color threshold value, and conveniently user uses, first thermochromic film can select discoloring temperature close to room temperature at the heat discoloration ink of 25-35 degree Celsius, in this way 31 degrees Celsius red temperature sensing ink, 30 degrees Celsius black temperature sensing ink, can realize in the special temperature sensing ink of syllogic variable color any one, the concrete material of the present embodiment to the first thermochromic film does not limit.And when not requiring the temperature of variable color equipment, the off-color material with higher discoloring temperature can also be selected.

It should be added that, when needing to make the first different thermochromic film for multiple region, can adopt and cover etc. that method is each only forms one deck first thermochromic film in first Electric radiant Heating Film in a region, first thermochromic film in each region can be the same or different, and will repeat no more at this.

Step 404, uses the first predetermined technique to form layer of transparent thermofin in the first thermochromic film;

When user needs to realize multi-layer colour-changing, user can form one deck second Electric radiant Heating Film and the second thermochromic film again on the upper strata of the first thermochromic film, thus the first Electric radiant Heating Film provides thermal source to realize variable color for the first thermochromic film, the second Electric radiant Heating Film provides thermal source to realize variable color for the second thermochromic film.But, due to when the second Electric radiant Heating Film is directly formed on the first thermochromic film, start adstante febre in the second Electric radiant Heating Film, the temperature of the first thermochromic film and the second thermochromic film all can rise, also namely variable color may occur, so now, the effect of multi-layer colour-changing is also not obvious simultaneously.So in order to avoid the second Electric radiant Heating Film for the first thermochromic film provides thermal source, thus make the first thermochromic film and the second thermochromic film that the problem of variable color occur simultaneously, can form layer of transparent thermofin by the first predetermined technique in the first thermochromic film, thus when preventing the second electric heating film for heating, the first thermochromic film also gets thermal source.

When specific implementation, septum pellucidum thermosphere comprises any one in transparent sull, nitride film, carbide thin film, nitrogen carbon compound film, oxynitride film and carbon oxynitride film, the present embodiment does not limit its concrete material, and the formation method of the concrete formation method of septum pellucidum thermosphere and the first Electric radiant Heating Film is similar, does not repeat them here.

Step 405, uses the first predetermined technique on septum pellucidum thermosphere, form one deck second Electric radiant Heating Film;

After first thermochromic film is formed layer of transparent thermofin, can also use the first predetermined technique on septum pellucidum thermosphere, form one deck second Electric radiant Heating Film, the method that this and step 401 use is similar, does not repeat them here.

Step 406, is divided at least one region by the second Electric radiant Heating Film, etches a pattern in each area;

Step 407, uses the second predetermined technique to form one deck second thermochromic film respectively on all or part of region of the second Electric radiant Heating Film, and the material of the second thermochromic film that regional is formed is identical or different.

It should be added that, step 406 and step 407 and step 402 and step 403 similar, all repeat no more at this, and according to the needs of user, can also continue in the second thermochromic film, form septum pellucidum thermosphere, the 3rd Electric radiant Heating Film and the 3rd thermochromic film, the number of the present embodiment to the thermochromic film formed does not limit.

In sum, the Electrochromic device method for making that the present embodiment provides, on base material, one deck first Electric radiant Heating Film is formed by using the first predetermined technique, and use the second predetermined technique in the first Electric radiant Heating Film, form one deck first thermochromic film, thus make when the first power supply be connected with the first Electric radiant Heating Film is switched on, first thermochromic film switches to the second color by the first color, and when the first power supply be connected with the first Electric radiant Heating Film is disconnected, the temperature of the first Electric radiant Heating Film declines thus makes the first thermochromic film switch back the first color by the second color.Solve in prior art, making five layer film is needed when making electrochromic device, and the cost of manufacture due to every layer film is high and yields is low, thus the problem that the cost of manufacture of the Electrochromic device caused is high and yields is low, and owing to being subject to the restriction of existing manufacture craft, existing ripe variable color scheme can only realize blue to colourless variable color, the problem that colorfulness is limited.Reach and only need to form double-layer films on base material, and the manufacturing technology of every layer film is ripe, thus while the making yields improving Electrochromic device, reduce the effect of manufacturing cost.And in the present embodiment, define septum pellucidum thermosphere, the second Electric radiant Heating Film and the second thermochromic film on the upper strata of the first thermochromic film simultaneously, reach on Electrochromic device, the effect of multi-layer colour-changing can be realized, meanwhile, the first power supply that the present embodiment uses and the magnitude of voltage of second source all the human safety voltage of 0 to 36V, and when Electrochromic device is such as mobile phone, panel computer or MP4, the small voltage of 3-15V even can be adopted to realize variable color, and safety in utilization is higher.

Embodiment five

Please refer to Fig. 5, it illustrates the method flow diagram of the Electrochromic device method for making that the embodiment of the present invention five provides, the method may be used for making the Electrochromic device as described in embodiment one and embodiment two, and this method for making comprises:

Step 501, the subregion of covering base material makes to reserve another part region comprising at least one pattern on the surface of base material, forms one deck first Electric radiant Heating Film on another part region;

But in order to allow user can have better visual experience, when use first predetermined technique forms the first Electric radiant Heating Film on base material, a part of region of base material can also be covered thus reserve another region comprising at least one pattern on the surface of base material, just only can form the first Electric radiant Heating Film on the upper strata in all or part of region in the figuratum region that base material reserves in this way.Thus when the first power supply be connected with the first Electric radiant Heating Film is switched on, first Electric radiant Heating Film only with pattern form can heat up, can not heat up in other regions of base material, and when being formed in the first thermochromic film on first Electric radiant Heating Film with pattern form and reaching discoloring temperature, first thermochromic film just can switch to the second color by the first color, and after the first Electric radiant Heating Film cooling, the first thermochromic film can switch back the first color by the second color.

In addition, when specific implementation, base material 110 can be through predetermined process or without any one in the glass of predetermined process, pottery, magnesium, aluminium, stainless steel and alloy, wherein, predetermined process comprises gas-phase deposition coating, electrochemical filming, plated film, anodic oxidation, differential arc oxidation, thermal spray, sprays paint and form at least one in organism film; First Electric radiant Heating Film can be any one in simple metal film, the metallic film of doping predetermined material and the alloy firm of doping predetermined material, wherein, predetermined material comprises at least one in oxide, nitride, carbonide, oxynitrides, carboritride, carboritride and carbon oxynitride, the aluminium film of such as doped zinc oxide aluminium film, pure aluminium film, doped aluminium or the aluminium film of doped aluminum nitride, the present embodiment just for above-mentioned material, but does not limit the material of base material and the first Electric radiant Heating Film.

It should be added that, when base material is the conductive bases such as magnesium, aluminium, stainless steel or alloy, before use first predetermined technique forms one deck first Electric radiant Heating Film on conductive base, in order to avoid being divided on base material by the electric current of the first Electric radiant Heating Film, thus cause the rate of rise in temperature of the first Electric radiant Heating Film slow, also namely the first thermochromic film reaches the problem of the time length that discoloring temperature needs, and predetermined technique can be used first on base material, to form one deck dielectric film.This dielectric film can comprise oxide or carbonide, and in order to allow dielectric film better be formed on conductive base, can adopt the mode of progressively transition on conductive base, be coated with the oxide of base material element.Such as, the base material of current selection is aluminium, then first can form pure aluminium film on base material, then the mode by progressively increasing oxygen or nitrogen flow makes base material to be formed the aluminum oxide film close to dielectric film, the present embodiment is just example in the above manner, when specific implementation, different production methods can be adopted according to different production environments, will illustrate no longer one by one at this present embodiment.

Step 502, uses the second predetermined technique to form the first thermochromic film in the first Electric radiant Heating Film;

After base material is formed the first Electric radiant Heating Film, the second predetermined technique can be used in the first Electric radiant Heating Film to form the first thermochromic film.

In addition, when specific implementation, the material of the first thermochromic film can be the temperature sensing ink with at least one variable color threshold value, and use for the ease of user, first thermochromic film can select discoloring temperature at the heat discoloration ink of 25-35 degree Celsius, in this way 31 degrees Celsius red temperature sensing ink, 30 degrees Celsius black temperature sensing ink, can realize in the special temperature sensing ink of syllogic variable color any one, the concrete material of the present embodiment to the first thermochromic film does not limit.And when not requiring the temperature of variable color equipment, the off-color material with higher discoloring temperature can also be selected.

Step 503, uses the first predetermined technique to form layer of transparent thermofin in the first thermochromic film;

When user needs to realize multi-layer colour-changing, user can use the first predetermined technique to form one deck second Electric radiant Heating Film and the second thermochromic film again on the upper strata of the first thermochromic film, thus the first Electric radiant Heating Film provides thermal source to realize variable color for the first thermochromic film, the second Electric radiant Heating Film provides thermal source to realize variable color for the second thermochromic film.But, due to when the second Electric radiant Heating Film is directly formed on the first thermochromic film, when the second Electric radiant Heating Film starts adstante febre, the temperature of the first thermochromic film and the second thermochromic film all can rise, also namely variable color may occur, so now, the effect of multi-layer colour-changing is also not obvious simultaneously.So in order to avoid the second Electric radiant Heating Film for the first thermochromic film provides thermal source, thus make the first thermochromic film and the second thermochromic film that the problem of variable color occur simultaneously, can form layer of transparent thermofin by predetermined technique in the first thermochromic film, thus when preventing the second electric heating film for heating, the first thermochromic film also gets the problem of thermal source.

In addition, when specific implementation, septum pellucidum thermosphere comprises any one in transparent sull, nitride film, carbide thin film, nitrogen carbon compound film, oxynitride film and carbon oxynitride film, the present embodiment does not limit its concrete material, and the formation method of the concrete formation method of septum pellucidum thermosphere and the first Electric radiant Heating Film is similar, does not repeat them here.

Step 504, the subregion of covering transparent heat-insulating film makes to reserve another part region comprising at least one pattern on the surface of transparent heat-insulating film, forms one deck second Electric radiant Heating Film on another part region;

Form septum pellucidum thermosphere on the first thermochromic film after, the subregion of septum pellucidum thermosphere can be covered thus reserve another region comprising at least one pattern on the surface of septum pellucidum thermosphere, and on another part region, forming one deck second Electric radiant Heating Film.This step and step 501 similar, do not repeat them here.

Step 505, uses the second predetermined technique to form the second thermochromic film in the second Electric radiant Heating Film.

Form the second Electric radiant Heating Film on septum pellucidum thermosphere after, the second predetermined technique can be used in the second Electric radiant Heating Film to form the second thermochromic film.

When specific implementation, the material of the second thermochromic film can be the temperature sensing ink with at least one variable color threshold value, and the conveniently use of user, second thermochromic film can select discoloring temperature at the heat discoloration ink of 25-35 degree Celsius, in this way 31 degrees Celsius red temperature sensing ink, 30 degrees Celsius black temperature sensing ink, can realize in the special temperature sensing ink of syllogic variable color any one, the concrete material of the present embodiment to the second thermochromic film does not limit.And when not requiring the temperature of variable color equipment, the off-color material with higher discoloring temperature can also be selected.

It should be added that, what the present embodiment provided adopts the method for covering to reserve the region of pattern on base material or septum pellucidum thermosphere, thus the method only having the upper strata of area of the pattern to form the first thermochromic film or the second thermochromic film, with provide in embodiment four on base material or septum pellucidum thermosphere, form the first Electric radiant Heating Film or the second Electric radiant Heating Film, and after formation first thermochromic film or the second thermochromic film, using etching method to etch, effect that pattern can reach is identical.When actual realization, can cross-reference, the present embodiment does not limit this.

In sum, the Electrochromic device method for making that the present embodiment provides, on base material, one deck first Electric radiant Heating Film is formed by using the first predetermined technique, and use the second predetermined technique in the first Electric radiant Heating Film, form one deck first thermochromic film, thus make when the first power supply be connected with the first Electric radiant Heating Film is switched on, first thermochromic film switches to the second color by the first color, and when the first power supply be connected with the first Electric radiant Heating Film is disconnected, the temperature of the first Electric radiant Heating Film declines thus makes the first thermochromic film switch back the first color by the second color.Solve in prior art, making five layer film is needed when making electrochromic device, and the cost of manufacture due to every layer film is high and yields is low, thus the problem that the cost of manufacture of the Electrochromic device caused is high and yields is low, and owing to being subject to the restriction of existing manufacture craft, existing ripe variable color scheme can only realize blue to colourless variable color, the problem that colorfulness is limited.Reach and only need to form double-layer films on base material, and the manufacturing technology of every layer film is ripe, thus while the making yields improving Electrochromic device, reduce the effect of manufacturing cost.Simultaneously, the magnitude of voltage of the first power supply that the present embodiment uses and second source is all the human safety voltage of 0 to 36V, and when Electrochromic device is such as mobile phone, panel computer or MP4, the small voltage of 3-15V even can be adopted to realize variable color, and safety in utilization is higher.

Because the making material of the first Electric radiant Heating Film can have multiple, and according to different making materials, the first Electric radiant Heating Film has different generation types, is described in detail respectively below to different implementations.

In the first implementation, to make the mobile phone color changeable outer casing of a glass material, concrete performing step is as follows:

(1) prepare a glass plate matched with handset size as base material, select the AlZn target of making first Electric radiant Heating Film use, the target of this AlZn target to be the percentage by weight of Zn and Al common on market be respectively 98% and 2%;

(2) the vacuum coating board of the equipment selecting making first Electric radiant Heating Film to use-can provide medium frequency magnetron sputtering;

(3) AlZn target and glass baseplate being put into temperature is in the vacuum coating equipment of room temperature-300 degrees Celsius, and using AlZn target as target, glass baseplate is as substrate, the number percent passing into airshed in vacuum chamber is 5%-15%, general gas flow is 150-500accm (standard-statecubiccentimeterperminute, mark condition milliliter per minute) oxygen and argon gas, adopt the negative bias of 0-300V, the power of 1-10KW simultaneously.Preferably, the temperature of vacuum coating equipment is 50 degrees Celsius, glass baseplate does not have that negative bias, argon flow amount are 300sccm, oxygen flow is 35sccm, and power is 3KW, and the present embodiment does not limit this.

(4) after keeping above-mentioned condition 0.5-3 hour, take out after glass baseplate cooling, namely now, define one deck AZO film (also doped zinc oxide aluminium film) on the upper strata of glass baseplate, the transparent membrane of this film to be light penetration be 50%-90%.Preferably, the plated film time can be chosen as 2 hours, and the present embodiment does not limit this.

(5) voltage is carried out to the AZO film that glass baseplate in step (4) is formed and add Thermal test, constantly pressurizeed in film two ends, thus the change curve that can obtain as shown in Figure 6, composition graphs 6 can find, when the voltage at AZO film two ends is 2.9V, there is electric current in AZO film, also namely AZO film can start heating.And the voltage of 2.9V is far smaller than the safe voltage of human body, so use AZO film to be safe as the first Electric radiant Heating Film concerning user, and when specific implementation afterwards, in order to the first Electric radiant Heating Film can be made to generate heat faster, the voltage of raising first power supply that can be suitable.

(6) select the temperature-sensitive red ink of commercially available 31 degrees Celsius, and with spray gun temperature-sensitive red ink sprayed to be coated with AZO film glass baseplate on, now can form one deck first thermochromic film on AZO film.Optionally, on the glass baseplate that the modes such as transfer printing, silk-screen, offset printing and bat printing can also be used temperature sensing ink to be fabricated into be coated with AZO film, the generation type of the present embodiment to temperature sensing ink does not limit.And the selection of temperature sensing ink can also according to client need to select discoloring temperature 25-35 degree Celsius temperature sensing ink as 30 degrees Celsius black temperature sensing ink, lower than the color mixture presenting redness and Turkisk blue when 22 degrees Celsius, redness is presented when 22-31 degree Celsius, present the special temperature sensing ink of glass baseplate background color on more than 31 degrees Celsius, the concrete material of the present embodiment to temperature sensing ink does not limit.Certainly, if do not consider the temperature of phone housing, when also namely the surface temperature of the variable color equipment made not being required, the temperature sensing ink of higher temperature can also be selected, do not repeat them here.

In addition, when temperature sensing ink being sprayed on the glass baseplate being coated with AZO film, glass baseplate can be selected to be divided into multiple region, and etch a pattern in each region, use the method for covering in each region, to spray different temperature sensing ink respectively simultaneously, thus make can present multiple color on same glass baseplate, the material of the present embodiment to the temperature sensing ink that glass baseplate sprays does not limit.

After above-mentioned steps, can the phone housing of variable color complete, concrete color changing method is: when the first power supply be connected with the first Electric radiant Heating Film is switched on, and the first Electric radiant Heating Film will start heating, and the first thermochromic film being now heated to 31 degrees Celsius will be become colorless by redness.

Wherein, first Electric radiant Heating Film can be connected with mobile phone circuit by which couple by the phone housing made through above-mentioned steps, thus by mobile phone for the first Electric radiant Heating Film provides the first power supply, and the time of the first power supply conducting and disconnection is controlled by controlling cell phone software, thus controlling the Coloring Time of the first thermochromic film, the existence form of the present embodiment to the first power supply does not limit.

In sum, the Electrochromic device method for making that the present embodiment provides, on base material, one deck first Electric radiant Heating Film is formed by using the first predetermined technique, and use the second predetermined technique in the first Electric radiant Heating Film, form one deck first thermochromic film, thus make when the first power supply be connected with the first Electric radiant Heating Film is switched on, first thermochromic film switches to the second color by the first color, and when the first power supply be connected with the first Electric radiant Heating Film is disconnected, the temperature of the first Electric radiant Heating Film declines thus makes the first thermochromic film switch back the first color by the second color.Solve in prior art, making five layer film is needed when making electrochromic device, and the cost of manufacture due to every layer film is high and yields is low, thus the problem that the cost of manufacture of the Electrochromic device caused is high and yields is low, and owing to being subject to the restriction of existing manufacture craft, existing ripe variable color scheme can only realize blue to colourless variable color, the problem that colorfulness is limited.Reach and only need to form double-layer films on base material, and the manufacturing technology of every layer film is ripe, thus while the making yields improving Electrochromic device, reduce the effect of manufacturing cost.And the magnitude of voltage of the first power supply that the present embodiment uses and second source is all the human safety voltage of 0 to 36V, and when Electrochromic device is such as mobile phone, panel computer or MP4, the small voltage of 3-15V even can be adopted to realize variable color, and safety in utilization is higher.

In the second implementation, still can the phone housing of variable color to make one, this method for making comprises:

(1) prepare a glass plate matched with handset size as base material, select the pure Al target that making first Electric radiant Heating Film uses;

(3) pure Al target and glass baseplate being put into temperature is in room temperature-300 degrees Celsius of vacuum coating equipments, and using Al target as target, using glass baseplate as substrate, the number percent passing into airshed in vacuum chamber is 5%-50%, general gas flow is 150-500accm oxygen or nitrogen, and adopt the negative bias of 0-300V, the power of 1-10KW simultaneously.Optionally, the gas passed in vacuum chamber can also be one or more the combination in oxygen, nitrogen and acetylene, and the concrete composition of the present embodiment to gas does not limit.

Preferably, the temperature of vacuum coating equipment is 50 degrees Celsius, glass baseplate negative bias is 100V, argon flow amount is 300sccm, oxygen flow is 15sccm, and power is 5KW, and the present embodiment does not limit this.

The target selected due to the present embodiment is fine aluminium target, and the electric conductivity of aluminium is fine, if plate one deck pure aluminium film on the glass substrate as the first Electric radiant Heating Film, so when the first power supply be connected with the first Electric radiant Heating Film is switched on, first Electric radiant Heating Film temperature rises very slow, thus make the first thermochromic film not reach discoloring temperature for a long time and variable color can not be realized, so in the present embodiment, when can pass through to plate the first Electric radiant Heating Film on base material, a small amount of oxygen is passed in vacuum coating equipment, thus make to comprise a small amount of aluminum oxide film in the first Electric radiant Heating Film, add the resistance of the first Electric radiant Heating Film, also namely improve the heating efficiency of the first Electric radiant Heating Film.

(4), after keeping above-mentioned condition 0.5-3 hour, take out after glass baseplate cooling, now, define the aluminium film of one deck doped with aluminium oxide on the upper strata of glass baseplate.Preferably, the plated film time can be chosen as 1.5 hours, and the present embodiment does not limit this.

Owing to adopting fine aluminium target in this enforcement, and the electric conductivity of aluminium is fine, so when the two ends making alive of the first Electric radiant Heating Film, electric current can be had to pass through, also namely the first Electric radiant Heating Film can start heating, so the present embodiment need not carry out voltage to the first Electric radiant Heating Film add Thermal test.

(5) select the special temperature sensing ink that can realize syllogic variable color, and with spray gun, special temperature sensing ink is sprayed on the glass baseplate of the aluminium film being coated with doped aluminium, now can form one deck first thermochromic film on the aluminium film of doped aluminium.Wherein, this special temperature sensing ink can be lower than the color mixture presenting red and Turkisk blue when 22 degrees Celsius, presents redness, present the temperature sensing ink of glass baseplate background color on more than 31 degrees Celsius when 22-31 degree Celsius.Optionally, the selection of temperature sensing ink can also need to select discoloring temperature the temperature sensing ink of 25-35 degree Celsius as the black temperature sensing ink of 30 degrees Celsius and the red temperature sensing ink of 31 degrees Celsius according to client, and the concrete material of the present embodiment to temperature sensing ink does not limit.And the modes such as transfer printing, silk-screen, offset printing and bat printing can be used temperature sensing ink to be fabricated on the glass baseplate of the aluminium film being coated with doped aluminium, the generation type of the present embodiment to temperature sensing ink does not limit.Certainly, if do not consider the temperature of phone housing, when also namely the surface temperature of the variable color equipment made not being required, the temperature sensing ink of higher temperature can also be selected, do not repeat them here.

In addition, time on glass baseplate temperature sensing ink being sprayed to the aluminium film being coated with doped aluminium, glass baseplate can be selected to be divided into multiple region, and etch a pattern in each region, use the method for covering in each region, to spray different temperature sensing ink respectively simultaneously, thus make can present multiple color on same glass baseplate, the kind of the present embodiment to the temperature sensing ink that glass baseplate sprays does not limit.

Wherein, first Electric radiant Heating Film can be connected with mobile phone circuit by which couple by the phone housing made through above-mentioned steps, thus by mobile phone for the first Electric radiant Heating Film provides the first power supply, and control the conducting of the first power supply and the time of disconnection by controlling cell phone software, thus controlling the Coloring Time of the first thermochromic film, the existence form of the present embodiment to the first power supply does not limit.

In the third implementation, still can the phone housing of variable color to make one, this method for making comprises:

(1) prepare a zirconia whiteware matched with handset size as base material, select the pure Al target that making first Electric radiant Heating Film uses;

(3) pure Al target and zirconia whiteware being put into temperature is in room temperature-300 degrees Celsius of vacuum coating equipments, and using Al target as target, zirconia whiteware is as substrate, the number percent passing into airshed in vacuum chamber is 5%-50%, general gas flow is 150-500accm oxygen and argon gas, adopt the negative bias of 0-300V at anode glass base material, the power of 1-10KW simultaneously.

Preferably, the temperature of vacuum coating equipment is 100 degrees Celsius, zirconia whiteware base material negative bias is 100V, argon flow amount is 250sccm, oxygen flow is 10sccm, and power is 5KW, and the present embodiment does not limit this.

The target selected due to the present embodiment is fine aluminium target, and the electric conductivity of aluminium is fine, if plate one deck pure aluminium film as the first Electric radiant Heating Film on zirconia whiteware, so when the first power supply be connected with the first Electric radiant Heating Film is switched on, first Electric radiant Heating Film temperature rises very slow, thus the first thermochromic film is beaten for a long time can not realize variable color less than discoloring temperature, so in the present embodiment, when can pass through to plate the first Electric radiant Heating Film on base material, a small amount of oxygen is passed in vacuum coating equipment, thus make to comprise a small amount of aluminum oxide film in the first Electric radiant Heating Film, add the resistance of the first Electric radiant Heating Film, also namely improve the heating efficiency of the first Electric radiant Heating Film.

(4), after keeping above-mentioned condition 0.5-3 hour, take out after the cooling of zirconia whiteware, now, define the aluminium film of one deck doped with aluminium oxide on the upper strata of zirconia whiteware.Preferably, the plated film time can be chosen as 1 hour, and the present embodiment does not limit this.

Owing to adopting fine aluminium target in this enforcement, and the electric conductivity of aluminium is fine, so when the two ends making alive of the first Electric radiant Heating Film, circuit can be had to pass through, also namely the first Electric radiant Heating Film can start heating, so the present embodiment need not carry out voltage to the first Electric radiant Heating Film add Thermal test.

(5) in order to allow phone housing can present different patterns when variable color, before on zirconia whiteware temperature sensing ink being fabricated into the aluminium film being coated with aluminium oxide, the aluminium film doped with aluminium oxide that the upper strata of zirconia whiteware can also be formed, also namely the first Electric radiant Heating Film is divided at least one region, and etches a pattern in each region; Wherein, in cut zone, the mode of etched pattern can adopt gold-tinted processing procedure to etch, and also can adopt other engraving methods, the present embodiment does not limit this.Such as, the mode the first electric-heating thin film using gold-tinted to etch etches A pattern as shown in Figure 7 and B pattern.

Optionally, after the first Electric radiant Heating Film is divided into multiple region, it can be each area configurations power switch, also can be the same power switch of multiple area configurations, thus can by the pass that controls power switch with close the first thermochromic film controlled which region and add thermo-color, the present embodiment does not limit its specific implementation form.

(6) form one deck first thermochromic film respectively in all or part of region of the first Electric radiant Heating Film, the material of the first thermochromic film that regional is formed can be the same or different.Such as, use spray gun on the A pattern shown in Fig. 7, spray the red temperature sensing ink of 31 degrees Celsius, and spray the black temperature sensing ink of 30 degrees Celsius on B pattern.The present embodiment just to spray two kinds of temperature sensing ink on A pattern and B pattern, and in actual implementation procedure, can spray same temperature sensing ink on A pattern and B pattern, the present embodiment does not limit this.

It should be added that, in above-mentioned three kinds of implementations, when needs realize multi-layer colour-changing, septum pellucidum thermosphere can be formed successively in the first thermochromic film, second Electric radiant Heating Film and the second thermochromic film, the generation type of its concrete generation type and the first Electric radiant Heating Film and the first thermochromic film is similar, to repeat no more at this, and now owing to defining trilamellar membrane on the first thermochromic film, so in order to find out that the color of the first thermochromic film changes this and just requires transparent heat-insulated layer clearly, second Electric radiant Heating Film and the second thermochromic film have higher light penetration, and rete is thin as far as possible, but when specific implementation, different requirements may be had according to different environments for use, so the present embodiment to be not specifically limited this.

The concrete color changing method of mobile phone color changeable outer casing is: when the first power supply be connected with the first Electric radiant Heating Film is switched on, first Electric radiant Heating Film will start heating, the first thermochromic film being now heated to 31 degrees Celsius will be become colorless by redness, and when the second source be connected with the second thermic Electric radiant Heating Film is switched on, second Electric radiant Heating Film will start heating, the second thermochromic film being now heated to 31 degrees Celsius will be become colorless by redness, show through voltage tester, when first power supply and second source are in the arbitrary numerical value between 1-36V, first Electric radiant Heating Film and the second Electric radiant Heating Film just can have electric current to pass through, and along with the increase of voltage, the heating effect of the first Electric radiant Heating Film and the second Electric radiant Heating Film is also constantly improving, when specific implementation, suitable power supply and suitable electric current and voltage value can be selected according to specific requirement, the present embodiment does not limit this.

In sum, the Electrochromic device method for making that the present embodiment provides, on base material, one deck first Electric radiant Heating Film is formed by using the first predetermined technique, and use the second predetermined technique in the first Electric radiant Heating Film, form one deck first thermochromic film, thus make when the first power supply be connected with the first Electric radiant Heating Film is switched on, first thermochromic film switches to the second color by the first color, and when the first power supply be connected with the first Electric radiant Heating Film is disconnected, the temperature of the first Electric radiant Heating Film declines thus makes the first thermochromic film switch back the first color by the second color.Solve in prior art, making five layer film is needed when making electrochromic device, and because the making non-defective unit of every layer film is low, thus the problem that the making yields of the Electrochromic device caused is low, and owing to being subject to the restriction of existing manufacture craft, existing variable color scheme can only realize blue to colourless variable color, the problem that colorfulness is limited.Reach and only need to form double-layer films on base material, and the manufacturing technology of every layer film is ripe, thus improve the effect of the making yields of Electrochromic device.And in the present embodiment, define septum pellucidum thermosphere, the second Electric radiant Heating Film and the second thermochromic film on the upper strata of the first thermochromic film simultaneously, reach on Electrochromic device, the effect of multi-layer colour-changing can be realized, meanwhile, the first power supply that the present embodiment uses and the magnitude of voltage of second source all the human safety voltage of 0 to 36V, and when Electrochromic device is such as mobile phone, panel computer or MP4, the small voltage of 3-15V even can be adopted to realize variable color, and safety in utilization is higher.

It should be added that, from above-described embodiment, time in the human safety voltage of 0-36V, first thermochromic film and/or the second thermochromic film just can realize variable color, even use the small voltage of 3-15V just can realize the variable color of the first thermochromic film and/or the second thermochromic film, so the variable color equipment that makes of the variable color equipment method for making that provides of the present embodiment is safety to human body in use, and above-described embodiment is just to make mobile phone color changeable outer casing, the shell making panel computer can also be used for when embody rule, shell of MP4 etc., and when the mobile phone color changeable outer casing made uses in the region of cold weather, the temperature sensing ink of 25-35 degree Celsius that can adapt to due to human body can be adopted, and this temperature is far away higher than the outdoor temperature of this region, so can also by etching the number at quarter of discoloring temperature in the first Electric radiant Heating Film or the second Electric radiant Heating Film, when the first thermochromic film or the second thermochromic film become colorless, illustrate that the temperature of phone housing has risen between 25-35 degree Celsius, at this moment user can be warmed oneself by contact phone housing.The present embodiment does not limit the embody rule of Electrochromic device and specific implementation form.

The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.

One of ordinary skill in the art will appreciate that all or part of step realizing above-described embodiment can have been come by hardware, the hardware that also can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be ROM (read-only memory), disk or CD etc.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims

1. an Electrochromic device, is characterized in that, described device comprises:

2. Electrochromic device according to claim 1, is characterized in that, described base material is conductive base, and described device also comprises:

3. Electrochromic device according to claim 1 and 2, is characterized in that, described Electrochromic device also comprises:

4. Electrochromic device according to claim 3, is characterized in that,

5. variable color equipment according to claim 3, is characterized in that,

6. an Electrochromic device method for making, is characterized in that, described method comprises:

7. Electrochromic device method for making according to claim 6, is characterized in that, described base material is conductive base, and described use first predetermined technique also comprised form one deck first Electric radiant Heating Film on base material before:

8. the Electrochromic device method for making according to claim 6 or 7, is characterized in that, described use first predetermined technique forms one deck first Electric radiant Heating Film on base material, comprising:

9. the Electrochromic device method for making according to claim 6 or 7, is characterized in that, described use second predetermined technique also comprised form one deck first thermochromic film in described first Electric radiant Heating Film before:

10. Electrochromic device method for making according to claim 9, is characterized in that, described use second predetermined technique forms one deck first thermochromic film in described first Electric radiant Heating Film, comprising:

11. Electrochromic device method for makings according to claim 6 or 7, it is characterized in that, described use second predetermined technique also comprises form one deck first thermochromic film in described first Electric radiant Heating Film after:

12. Electrochromic device method for makings according to claim 11, is characterized in that, described first predetermined technique of described use forms one deck second Electric radiant Heating Film on described septum pellucidum thermosphere, comprising:

13. Electrochromic device method for makings according to claim 11, is characterized in that, described second predetermined technique of described use also comprised form one deck second thermochromic film in described second Electric radiant Heating Film before:

14. Electrochromic device method for makings according to claim 12, is characterized in that, described second predetermined technique of described use forms one deck second thermochromic film in described second Electric radiant Heating Film, comprising: